Cooler for ores.



T. EDWARDS.

GOOLER FOR ORBS.

APPLICATION FILED NOV.17, 1909. RENEWED NOV.10. 1910.

Patented June 20, 1911.

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THOMAS EDWARDS, OF SEBASTOPOL, VICTORIA, AUSTRALIA.

COOLER FUR ORES.

Application filed November 17, 1909, Serial No. 528,525.

T 0 all whom it may concern:

Be it known that I, THOMAS EDWARDS, a subject of the King of GreatBritain and Ireland, residing at Sebastopol, Ballarat, Colony ofVictoria, Australia,have invented certain new and useful Improvements inCoolers for Ore, of whichthe following is a specification.

My invention relates broadly to furnaces for roasting ores. Suchfurnaces require means for cooling the ore, when the roasting processhas been completed, and of these means different kinds have beenheretofore suggested or used, such as drag chains in which dust israised, involving consequent loss; or revolving jacketed cylinders,which are troublesome and expensive.

I have discovered that the best form of cooler may, with somemodifications, be built on the principles involved in my ore roaster,shown in Letters Patent of the United States, granted on the 25th day ofNovember, 1902, and numbered 714,464, and that this improved form ofcooler is especially fitted to operate with my said roaster.

My invention is illustrated in the accompanying drawings, in whichFigure 1 represents a side elevation, and Fig. 2 a plan showing therabbling mechanism. Fig. 3 represents a cross section. Fig. 4 is adetail view showing the use of a water jacket for cooling.

In these drawings is shown at A, the body of the cooler, a rectangularstructure, of any dimensions desired, according to conditions. Theproportions suitable for practical Work may be stated as forty (40) feetlong, by six (6) feet wide and fifteen (15) inches deep.

The sides are formed by the channel irons A. The structure is stiffenedby angle irons B, placed transversely under the bottom, at suitableintervals. The top is open to the atmosphere, as a means for cooling theore, and I propose also, if the conditions under any circumstancesrequire, to apply a cold water jacket, with the proper circulation, foradditional cooling means. Such jacket is shown at A Fig. 4.

In the cooling process I employ rabbles for stirring the ore and forgiving it a traversing movement along the bed of the cooler whilepermitting exposure of all parts to the air for the escape of heatunits. These and the operating mechanism are supported by frame workmounted on the side Specification of Letters Patent.

Patented June 20, 1911. Renewed November 10, 1910. Serial No. 591,675.

girders of the cooler. In this frame work are angle irons Gr, fixed tothe girders and inclined inward and connected by cross pieces 2, andangle iron longitudinal bars H, and to these are bolted the bearingswhich hold the spindles of the rabbles in place. On the top of theseframes are also bearings which support the line shaft I extendinglongitudinally of the cooler. This is provided with bevel pinions whichmesh with crown wheels K on the upper ends of the spindles of therabbles 3, and the shaft is driven from a preferably variable speedpulley on a short transverse shaft L. This is driven by a motor Mmounted on the superstructure. By means of the variable speed pulley,the rabbles may be controlled in the process of cooling.

In order to cause the ore to move from the feed end to the discharge,the cooler is inclined, and this movement is regulated by the amount ofinclination, at the will of the operator. To effect this the body of thecooler is provided with a cast iron pivot 20, which rests on a cast ironbearing 10 on the top of a block E. This pivot may be located at anysuitable point under the cooler, and toward the discharge end I use ascrew and worm gear F whereby the cooler may be tilted more or less.

The feed spout 0 receives the ore from the spout C of the roaster, andthe cooled ore is discharged from the spout D.

I may cool the rabbles by the means described in my aforesaid patent oruse plain rabbles.

The bottom of the cooler may be composed of various materials, such, forin stance, as sheet iron, though -I do not confine myself to this.

I claim:

1. A cooler for ores and other materials, the same consisting of atilting body formed of sides and bottom, and open to the air at the top,in combination with the rotating spindles carrying rabbles arranged tore volve in the ore, and mechanism for moving the rabbles.

2. A cooler for ores and the like, the same consisting of a tilting bodyformed with sides and bottom and an open top and an open superstructure,in combination with vertical spindles supported in the superstructureand carrying rabbles arranged to revolve in the ore, and means foroperating the spindles, substantially as described.

3. A cooler for ores and the like consist- In testimony whereof, I affixmy signaing of 2:1 (gilting bodly formed with cl(1)sed ture in presenceof two Witnesses. sides an ottom am an open top, coo ing means, anopen-Work superstructure, verti- THOMAS EDWVARDS 5 cal spindles and adrive shaft supported thereby, and rabbles carried by the spindles,substantially as described.

WVitnesses:

JOHN F. JEWELL, CHARLES HARKETT.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, I). G.

